1 files changed, 1 insertions, 1 deletions
diff --git a/cv.h b/cv.h
index 6e8383a20a..6e471413ff 100644
--- a/cv.h
+++ b/cv.h
@@ -11,7 +11,7 @@
  * in sv.h  */
 
 struct xpvcv {
-    char *	xpv_pv;		/* pointer to malloced string */
+    char *	xpv_pv;		/* pointer to malloced string (for prototype) */
     STRLEN	xpv_cur;	/* length of xp_pv as a C string */
     STRLEN	xpv_len;	/* allocated size */
     IV		xof_off;	/* integer value */